SIMBAD references

2006A&A...453...39R - Astronomy and Astrophysics, volume 453, 39-45 (2006/7-1)

The origin of rR1 ring structures in barred galaxies.

ROMERO-GOMEZ M., MASDEMONT J.J., ATHANASSOULA E. and GARCIA-GOMEZ C.

Abstract (from CDS):

We propose a new theory for the formation of rR1 ring structures, i.e. for ring structures with both an inner and an outer ring, the latter having the form of ``8''. We propose that these rings are formed by material from the stable and unstable invariant manifolds associated with the Lyapunov orbits around the equilibrium points of a barred galaxy. We discuss the shape and velocity structure of the rings thus formed and argue that they agree with the observed properties of rR1 structures.

Abstract Copyright:

Journal keyword(s): galaxies: structure

Simbad objects: 2

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2020.02.23-18:13:33

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